Oral irrigator



FIG. 1 is a front perspective view of an oral irrigator showing the my design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is an enlarged view of the design features contained within circle 9 of FIG. 2.

The broken lines immediately adjacent to the shaded areas define the bounds of the claimed design and form no part thereof. All other broken lines depict portions of the oral irrigator that form no part of the claimed design. 

CLAIM The ornamental design for an oral irrigator, as shown and described. 